Werk #4183: ibm_imm_fan: Fixed crash if fan speed is "unavailable"

Component Checks & agents
Title ibm_imm_fan: Fixed crash if fan speed is "unavailable"
Date Jan 3, 2017
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
1.4.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.2.8p16 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

If the value for speed is "unavailable" the behaviour is now similar to "offline": The state becomes CRIT and the status detail shows the output "is unvailable".

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